particulate carbon

https://doi.org/10.1351/goldbook.P04433
A @[email protected] consisting of separated monolithic particles.
Note:
Distinctions should be made between coarse particulate carbon or @[email protected] (larger than about \(100\ \unicode[Times]{x3BC}\text{m}\), but smaller than about \(1\ \text{cm}\) in average size), fine particulate carbon or powder or flour (between \(1\) and \(100\ \unicode[Times]{x3BC}\text{m}\) in average size) and @[email protected] (below approximately \(1\ \unicode[Times]{x3BC}\text{m}\) in size in at least one direction), e.g. @[email protected] and @[email protected]
Source:
PAC, 1995, 67, 473. (Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)) on page 499 [Terms] [Paper]